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Journal of Clinical Microbiology, July 1998, p. 1877-1881, Vol. 36, No. 7
Department of
Pediatrics,1
Division of Infectious
Diseases,3 and
Department of
Pathology,2 University of Texas Medical
Branch at Galveston, Galveston, Texas 77555-0371
Received 6 January 1998/Returned for modification 26 February
1998/Accepted 30 March 1998
Nonpoliovirus enteroviruses cause a variety of diseases that are
common in young children and adults. The "gold standard" for
laboratory diagnosis of enteroviruses is cell culture isolation, followed by serotype identification by neutralization assay. These procedures are time-consuming and expensive. Rapid serotype
identification of enteroviruses is important in
differentiating nonpoliovirus enterovirus pathogens from vaccine strain
polioviruses that can be shed for some time after vaccination. In
the present investigation, we evaluated a rapid method for serotype
identification of enteroviruses by indirect immunofluorescence assay
(IFA) using commercially available monoclonal antibodies for
polioviruses, coxsackieviruses type B, and six serotypes of
commonly circulating echoviruses. Of 291 isolates of enteroviruses
included in the study, 95 were polioviruses and 196 were nonpoliovirus
enteroviruses. Two hundred thirty-four of these (38 polioviruses and
196 nonpoliovirus enteroviruses) were consecutively grown in the
laboratory over a 5-year period. IFA identified the serotypes of 74%
of the consecutive isolates and 71% of all enterovirus isolates by
yielding a positive staining result. The levels of agreement in the
identification of the enterovirus group between IFA and neutralization
tests were 92% for consecutively grown isolates and 85% for all
enterovirus isolates. The sensitivity of the IFA for the detection of
viruses for which specific monoclonal antibodies were applied was 73%
for polioviruses, 85% for coxsackieviruses type B, and 94% for
echoviruses. Specificity was near 100% for polioviruses and
coxsackieviruses type B and 94% for echoviruses. We conclude that IFA
can be helpful as a preliminary test for serotype identification of
enteroviruses. The results are most accurate when the test identifies
the isolate as a poliovirus.
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Use of Monoclonal Antibodies To Identify
Serotypes of Enterovirus Isolates
*
Corresponding author. Mailing address: Department of
Pediatrics, Division of Infectious Diseases, University of Texas
Medical Branch, Children's Hospital, 9th St. at Market, Galveston, TX 77555-0371. Phone: (409) 772-2798. Fax: (409) 747-1753. E-mail: tchonmai{at}UTMB.edu.
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